"You know that Frank, or his father, keeps pigs?"

"I want you to go some night--the sooner the better--and let them out, so that when morning comes the pigs will be minus, and Master Frank will have a fine chase after them."

"Seems to me," said Dick, "that won't be much of a joke."

"Then I guess you never saw a pig-chase. Pigs are so contrary that if you want them to go in one direction they are sure to go in another. The way they gallop over the ground, with their little tails wriggling behind them, is a caution."

"But it would be a great trouble to Frank to get them back."

"Oh, well, you could help him, and so get still more fun out of it, he not knowing, of course, that you had anything to do with letting them out."

"And that would take me out of the shop for a couple of hours," said Dick, brightening at the thought.

"Of course," said John; "so you would get a double advantage. Come, what do you say?"